US434001A - eoyce - Google Patents

Description

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M. 0. ROYCE-8v J. GONNOLLY. Y

Homme APPARATUS.

No. 434,001.. Patented Aug. 12, 1890.

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. M. o. ROYCE au J. CONNOLLY.

' HOISTING APPARATUS.

No. 434,001. Patented Aug. 12, 1890.

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@M w@ @A MARVIN O. ROYCE AND JOHN CONNOLLY, OF SOMERVILLE, MASSACHUSETTS.

HOISTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 434,001, dated August 12, 1.890.

Application filed March 29, 1890. Serial No. 345,866. (No model.)V

To all whom, it may concern:

Be it known that we, MARVIN O. ROYCE and JOHN .OONNOLLY, both of Somerville, county of Middlesex, State of Massachusetts, have invented an Improvement in Hoisting Apparatus, of which the following description, in connection with the accompanying drawings, is a speciiicatiomlike letters on the drawings representing like parts.

This invention has for its object to construct a hoisting apparatus and support for a swing-'staging or other device, whereby the staging may be held by means independent of the building. For swing-staging a separate hoisting device is located at each end thereof, yet for many purposes but a single hoisting device is necessary. Then two hoisting devices are employed, they are made substantially alike. The hoisting` device consists of a main frame and a riser or arm arranged to slide telescopically therein or parallel therewith to` extend the main frame in the direction of its length; also, means for lifting the riser and for holding it in any desired position, and also means for supporting the main frame'in elevated position and for assisting in raising the said frame into such elevated position. The hoisting device will bear a suitable pulley-block at its upper end, from which a staging or other device maybe suspended. 'W hen the hoisting device is not in use, the riser may be lowered to shorten up the device, and the main frame-support may-be closed upon the parts for compactness. XVe have provided suitable brackets, which may be attached to the side of a building for additional support for the swing- Staging.

Our invention comprehends the use of an elevator car or basket to be supported by the hoisting device herein described, it being' raised and lowered by any suitable means.

Figure 1 shows in front elevation a hoisting apparatus embodying this invention, it being shown in connection with a swing-staging, and hence two hoisting devices are employed; Fig. 2, a side elevation of the hoisting apparatus shown in Fig. l, the riser or telescopically-moving arm being lowered to save spaceon the drawings, and the bracket being secured to the side of the building,

which may serve as an additional supportfor the staging; Fig. 3, a detail ot the bracket; Fig. l, a side view of a single hoisting apparatus arranged to support the elevator car or basket; Fig. 5, a detail of the elevator caror basket, and Fig. 6 an edge view of one of the hoisting devices with the parts arranged in position for conveyance or storage.

The hoisting apparatus herein shown consists ot' two hoisting devices substantially alike, so one only will be described. A

The hoisting device comprises, essentially, a main frame c, hollow or tubular, and a riser or telescopically-movable arm b of suitable size to enter and move freely within themain frame c.

The means herein shown for raising the riser or telescopically-movable arm b consists of a cord or chain c, one end of which is rigidly attached to the frame ct at 2, it extending around a pulley Z9', (see dotted lines, Fig. 2,) carried by the riser b at its lower end, thence around a pulley b2, journaled in a bracket or arm attached to the main frame a, and thence arounda suitable winch w, which maybe turned by a crank and locked in any desired position. It will be seen that the point of attachment-namely, at 2-of the cord c is directly opposite the pulley b2, or nearly so, and the cord is carried down into the tubular main frame a by means of the riser I), when the latter is lowered, and by pulling upon the cord c the riser will belifted, the locking device w on the winch w holding it at any desired point. The riser or arm b bears a pulley-block D, over which a cord d, supporting the staging d', passes, said cord being secured at the bottom of the main frame by winding it on a cleat to2. By operating the cord CZ in any usual manner the staging d can be raised and lowered at will.

We have arranged brackets c, which may be bolted to the side of a building to give additional support to the staging d', these brackets being preferably formed of metal by bending a strip or bar of steel into proper shape. A yoke f is secured to the upper end ot' the riser i), which bearing against the building keeps the staging d away from the side wall of the building a proper distance. This yoke may, if desired, be provided with any suit- IOD able friction-roller. The lower end of the main frame ct is made conical or pointed, as at g, to enter the ground.

A suitable support is provided for the main frame, it consisting, as herein shown, of two legs n n', connected at their upper ends to strong spiral springs n2, they being spread at their lower ends and connected by means of a cross-bar n3. The tendency of the springs is to draw the main frame a toward the support n n n3 in the direction of the arrow, Fig. 2, and a cross-bar n4 is secured to the said main frame a, which limits its movement.

Vhen it is desired to fold the apparatus in compact form for shipment or for conveyance, or for storage when not in use, the support .n n In3 is turned up toward the riser against the tension of the springs, and the cross-bar n3 passes over the upper end of the riser or arm b, after which the said riser or arm is pushed outward suiiiciently to resist the return movement of the said support, the cross-bar n3 bearing against it, as shown in Fig. 6.

\/Vhen it is desired to lift the device, the riser or arm b is withdrawn, the support will be immediately released, and the outer end of the support bearing on the ground will, by means of the strong springs n2 n2, draw the foot of the main frame toward the inner end of the support, lifting the upper end of said frame into its elevated position, the foot of the support n n n3 being held 'from slipping by the operator. This support, being thus held and the device being raised by the springs n2 n2, causes the upper end of the riser to follow substantially in a vertical line.

It will be seen that many of the parts thus far d'escribed may be changed in detail, yet come within the spirit and scope of this invention.

In Fig. 4 a single hoisting` device is employed, it being desired tolift an elevator car or basket or equivalent e2, such a car being shown in Fig. 5. The hoisting device is in this instance substantially the same as before referred to. The car, however, has a loop or eye t, through which its supporting cord passes to preventit from swinging too freely. The hoisting device herein described may be used for many purposes, so we do not desire to limit our invention to any particular purpose.

We claim- 1. In a hoisting device, a tubular main frame a, and telescopicallymovable arm b therein, combined with an operating cord passing over the lower end of the said arm b within said frame, substantially asdescribed.

2. In ahoisting device,atubular main frame a, and an arm b, combined with an operating-cord passing over the lower end of arm b, over pulley b2 on the frame to a winch w, and a locking device w for holding said arm in any desired position, substantially as described.

3. In a hoisting device, the main frame a, an arm b, and means for moving the arm, combined with a support for the device pivoted to the main frame and spring-controlled at its pivotal point, substanti ally as described.

4. In a hoisting device, the main frame and arm movable parallel therewith and with a yokef, combined with means for moving the said arm, a pivoted support for maintaining the main frame in elevated position, and a spring connecting said frame and support, substantially as described.

5. In a hoisting device, the mainframe and arm movable parallel therewith and bearing a pulley-block, com bined with means for moving the arm, and a spring-controlled support 'pivoted to the upper end of and normally drawn toward the main frame for lifting and thereafter supporting the said main frame, substantially as described.

6. In a hoisting device, the main frame and' arm movable parallel therewith and means for moving the arm, combined with the springcontrolled support n n n3, pivoted to the main frame, and a stop n4 for said support, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.-

MARVIN O. ROYCE. JOHN CONNOLLY. Witnesses:

BERNICE J. N oYns, EMMA J. BENNETT.

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